diff --git a/modules/audio_coding/codecs/g711/audio_decoder_pcm.cc b/modules/audio_coding/codecs/g711/audio_decoder_pcm.cc
index 46ac671b30..ff7e919d9b 100644
--- a/modules/audio_coding/codecs/g711/audio_decoder_pcm.cc
+++ b/modules/audio_coding/codecs/g711/audio_decoder_pcm.cc
@@ -58,6 +58,11 @@ int AudioDecoderPcmU::PacketDuration(const uint8_t* encoded,
   return static_cast<int>(encoded_len / Channels());
 }
 
+int AudioDecoderPcmU::PacketDurationRedundant(const uint8_t* encoded,
+                                              size_t encoded_len) const {
+  return PacketDuration(encoded, encoded_len);
+}
+
 void AudioDecoderPcmA::Reset() {}
 
 std::vector<AudioDecoder::ParseResult> AudioDecoderPcmA::ParsePayload(
@@ -99,4 +104,9 @@ int AudioDecoderPcmA::PacketDuration(const uint8_t* encoded,
   return static_cast<int>(encoded_len / Channels());
 }
 
+int AudioDecoderPcmA::PacketDurationRedundant(const uint8_t* encoded,
+                                              size_t encoded_len) const {
+  return PacketDuration(encoded, encoded_len);
+}
+
 }  // namespace webrtc
diff --git a/modules/audio_coding/codecs/g711/audio_decoder_pcm.h b/modules/audio_coding/codecs/g711/audio_decoder_pcm.h
index 3fa42cba30..5531d6e7f0 100644
--- a/modules/audio_coding/codecs/g711/audio_decoder_pcm.h
+++ b/modules/audio_coding/codecs/g711/audio_decoder_pcm.h
@@ -35,6 +35,8 @@ class AudioDecoderPcmU final : public AudioDecoder {
   std::vector<ParseResult> ParsePayload(rtc::Buffer&& payload,
                                         uint32_t timestamp) override;
   int PacketDuration(const uint8_t* encoded, size_t encoded_len) const override;
+  int PacketDurationRedundant(const uint8_t* encoded,
+                              size_t encoded_len) const override;
   int SampleRateHz() const override;
   size_t Channels() const override;
 
@@ -62,6 +64,8 @@ class AudioDecoderPcmA final : public AudioDecoder {
   std::vector<ParseResult> ParsePayload(rtc::Buffer&& payload,
                                         uint32_t timestamp) override;
   int PacketDuration(const uint8_t* encoded, size_t encoded_len) const override;
+  int PacketDurationRedundant(const uint8_t* encoded,
+                              size_t encoded_len) const override;
   int SampleRateHz() const override;
   size_t Channels() const override;